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1-BROMO-2-ETHYNYLBENZENE

1-BROMO-2-ETHYNYLBENZENE structure

CAS No.: 766-46-1

Chemical Name:: 1-BROMO-2-ETHYNYLBENZENE

Synonyms: 2-BROMOPHENYLACETYLENE;DK893;o-Bromophenylacetylene;2'-Bromophenylacetylene;2-bromo-1-ethynylbenzene;2'-BROMOPHENYL ACETYLENE;1-BROMO-2-ETHYNYLBENZENE;2-Bromophenylacetylene 97%;Benzene, 1-broMo-2-ethynyl-;1-Bromo-2-ethynylbenzene>

CBNumber:: CB7702495

Molecular Formula:: C8H5Br

Molecular Weight:: 181.03

MDL Number:: MFCD01863358

MOL File:: 766-46-1.mol

MSDS File:: SDS

Last updated:2026-05-28 02:46:22

Product description	Number	Pack Size	Price
1-Bromo-2-ethynylbenzene 95%	494178	1g	$101
1-Bromo-2-ethynylbenzene >98.0%(GC)	B4608	1g	$120
1-Bromo-2-ethynylbenzene >98.0%(GC)	B4608	5g	$477
2-Bromophenylacetylene	TRC-B686430-500MG	500mg	$117
2-Bromophenylacetylene	TRC-B686430-250MG	250mg	$91
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1-BROMO-2-ETHYNYLBENZENE Properties

Boiling point	92-93 °C20 mm Hg(lit.)
Density	1.443 g/mL at 25 °C(lit.)
refractive index	n20/D 1.595(lit.)
Flash point	147 °F
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
solubility	Acetone, Dichloromethane, Ethyl Acetate, Hexane
form	Oil
color	Colourless
Stability	Light and Temperature Sensitive.
InChI	1S/C8H5Br/c1-2-7-5-3-4-6-8(7)9/h1,3-6H
InChIKey	RVDOYUFNRDGYGU-UHFFFAOYSA-N
SMILES	Brc1ccccc1C#C
CAS DataBase Reference	766-46-1(CAS DataBase Reference)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H315-H319-H335
Precautionary statements	P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs	Respiratory system
PPE	Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36
RIDADR	NA 1993 / PGIII
WGK Germany	3
HS Code	2903998090
Storage Class	10 - Combustible liquids
Hazard Classifications	Eye Irrit. 2 Skin Irrit. 2 STOT SE 3

1-BROMO-2-ETHYNYLBENZENE price More Price(76)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	494178	1-Bromo-2-ethynylbenzene 95%	766-46-1	1g	$101	2026-04-30	Buy
TCI Chemical	B4608	1-Bromo-2-ethynylbenzene >98.0%(GC)	766-46-1	1g	$120	2026-04-30	Buy
TCI Chemical	B4608	1-Bromo-2-ethynylbenzene >98.0%(GC)	766-46-1	5g	$477	2026-04-30	Buy
TRC	TRC-B686430-500MG	2-Bromophenylacetylene	766-46-1	500mg	$117	2026-06-03	Buy
TRC	TRC-B686430-250MG	2-Bromophenylacetylene	766-46-1	250mg	$91	2026-06-03	Buy

Product number	Packaging	Price	Buy
494178	1g	$101	Buy
B4608	1g	$120	Buy
B4608	5g	$477	Buy
TRC-B686430-500MG	500mg	$117	Buy
TRC-B686430-250MG	250mg	$91	Buy

1-BROMO-2-ETHYNYLBENZENE Chemical Properties,Uses,Production

Chemical Properties

Colourless Oil

Uses

1-Bromo-2-ethynylbenzene may be used in the synthesis of 1-(2-bromophenyl)-2-(dibenzo[b,d]thiophen-4-yl)ethanone.

Uses

Starting material for heterocyclotriynes, second-order nonlinear optical materials, and unsymmetrical 1,4-diarylbutadiynes

Synthesis Reference(s)

Tetrahedron Letters, 22, p. 2495, 1981 DOI: 10.1016/S0040-4039(01)92942-9

General Description

1-Bromo-2-ethynylbenzene (BEB) is a haloalkyne. It undergoes Sonogashira coupling with methyl 2-iodobenzoate to form bromo tolane derivative.

1-BROMO-2-ETHYNYLBENZENE synthesis

Synthesis of 1-BROMO-2-ETHYNYLBENZENE from 2-Bromobenzyl alcohol

1-BROMO-2-ETHYNYLBENZENE Preparation Products And Raw materials

Raw materials

Benzene, 1-bromo-2-[(1Z)-2-bromoethenyl]- Benzenediazonium, 2-bromo-, tetrafluoroborate(1-) 1-broMo-2-(2,2-dibroMovinyl)benzene (2-BROMOPHENYLETHYNYL)TRIMETHYLSILANE TRIBUTYLSTANNYLACETYLENE

2-Bromocinnamic acid Phenacyl Bromide 1-Bromo-2-iodobenzene 2-Bromobenzyl alcohol Dimethyl (1-Diazo-2-oxopropyl)phosphonate

Acetylene 2-Bromobenzaldehyde 1,2-Dibromobenzene

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Preparation Products

1-Ethynyl-2-phenylbenzene

1-BROMO-2-ETHYNYLBENZENE Suppliers

Global( 164)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	8741	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20122	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13901	58
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29815	58
Changzhou Ansciep Chemical Co., Ltd.	+86 519 86305871	sales@ansciepchem.com	CHINA	4241	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
Wuhan Chemwish Technology Co., Ltd	027-67849912	sales@chemwish.com	CHINA	10821	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58
Shaanxi Dideu Medichem Co. Ltd	+8617392709771	1097@dideu.com	China	3992	58

Supplier	Advantage
Shanghai UCHEM Inc.	58
Henan Fengda Chemical Co., Ltd	58
Shanghai Daken Advanced Materials Co.,Ltd	58
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Changzhou Ansciep Chemical Co., Ltd.	58
Alchem Pharmtech,Inc.	58
Wuhan Chemwish Technology Co., Ltd	58
CONIER CHEM AND PHARMA LIMITED	58
Shaanxi Dideu Medichem Co. Ltd	58

View Lastest Price from 1-BROMO-2-ETHYNYLBENZENE manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-06-05	2-Bromophenylacetylene 766-46-1	$70.00-212.00	5g	0.97	25kg	Shanghai UCHEM Inc.
2025-12-24	1-Bromo-2-ethynylbenzene 766-46-1		1KG	99.0%	1000 tons	Shaanxi Dideu Medichem Co. Ltd
2025-09-25	1-Bromo-2-ethynylbenzene 766-46-1	$5.00	1KG	99%		Henan Fengda Chemical Co., Ltd

2-Bromophenylacetylene
766-46-1
$70.00-212.00
0.97
Shanghai UCHEM Inc.

1-Bromo-2-ethynylbenzene
766-46-1
$0.10
99.0%
Shaanxi Dideu Medichem Co. Ltd

1-Bromo-2-ethynylbenzene
766-46-1
$5.00
99%
Henan Fengda Chemical Co., Ltd

1-BROMO-2-ETHYNYLBENZENE Spectrum

1-BROMO-2-ETHYNYLBENZENE(766-46-1)¹HNMR 1-BROMO-2-ETHYNYLBENZENE(766-46-1)FT-IR

766-46-1(1-BROMO-2-ETHYNYLBENZENE)Related Search:

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2,2'-DIBROMODIPHENYLACETYLENE 1-BROMO-2-PHENYLETHYNYL-BENZENE 2,3-DIBROMO-4-ETHYNYL-6-METHOXY-PHENOL 4-(2-BROMOPHENYL)-2-METHYL-3-BUTYN-2-OL 2-BROMO-1-ETHYNYL-4,5-DIMETHOXY-BENZENE

4-(2-BROMOPHENYL)-3-BUTYN-2-OL 1-BROMO-2-ETHYNYL-5-FLUORO-BENZENE 4-(2-BROMO-PHENYLETHYNYL)-BENZONITRILE

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1-BROMO-2-ETHYNYLBENZENE 2'-BROMOPHENYL ACETYLENE Benzene, 1-broMo-2-ethynyl- 2-Bromophenylacetylene 97% 1-BroMo-2-ethynylbenzene 95% o-Bromophenylacetylene 2-bromo-1-ethynylbenzene 1-Bromo-2-ethynylbenzene> DK893 2'-Bromophenylacetylene 2-BROMOPHENYLACETYLENE 766-46-1 C8H5Br ARYL HALIDE Alkynyl Building Blocks Halogenated Hydrocarbons Organic Building Blocks Aromatic Halides (substituted) Aromatics Compounds Aromatics Alkynyl Halogenated Hydrocarbons Organic Building Blocks